WooCommerce: Complete Button @ Order Admin

When managing WooCommerce orders manually, efficiency is everything—especially if you’re dealing with high volumes or handling custom fulfillment workflows.

Typically, to mark an order as “Completed,” you’d have to open the order, change the status from the dropdown, and then click “Update”. That’s an extra step that can feel repetitive if you’re doing it often.

In this quick developer tutorial, I’ll show you how to add a “Complete Order” button directly to the single order edit page in the WooCommerce admin. This button appears alongside the existing “Update” action and lets you instantly complete the order with one click—no need to manually change the status first.

It’s a small UI enhancement, but one that can save time and reduce friction in your daily order management tasks. Best of all, the solution only requires a lightweight PHP snippet you can add to your theme or custom plugin. Enjoy!

PHP Snippet: Display a “Complete Order” Button @ WooCommerce Single Order Edit Page

This snippet adds a custom “Complete Order” button to the WooCommerce order edit screen in the WordPress admin.

It hooks into the woocommerce_order_actions_end action, which is triggered at the end of the order actions section (below the “Update” button).

The function checks if the order exists and is not already completed. If that’s the case, it builds a URL pointing to WooCommerce’s built-in woocommerce_mark_order_status AJAX handler, passing along the order ID, target status (completed), and a security nonce.

The resulting link is styled as a button and includes a dashicon for visual clarity. When clicked, it instantly updates the order status to “Completed” without needing to change the dropdown or click “Update”.

This is a simple yet effective customization that improves admin workflow by reducing the number of steps required to complete an order. It’s a great fit for stores that often manually review and process orders!

/**
 * @snippet       Complete Order Button @ WooCommerce Order Admin
 * @tutorial      https://businessbloomer.com/woocommerce-customization
 * @author        Rodolfo Melogli, Business Bloomer
 * @compatible    WooCommerce 9
 * @community     https://businessbloomer.com/club/
 */

add_action( 'woocommerce_order_actions_end', 'bbloomer_add_custom_complete_order_button' );

function bbloomer_add_custom_complete_order_button( $order_id ) {

    $order = wc_get_order( $order_id );    
    if ( ! $order || $order->has_status( 'completed' ) ) return;

    $args = [
        'action' => 'woocommerce_mark_order_status',
        'status' => 'completed',
        'order_id' => $order_id,
        '_wpnonce' => wp_create_nonce( 'woocommerce-mark-order-status' ),
    ];

    $url = add_query_arg( $args, admin_url( 'admin-ajax.php' ) );

    echo '<li class="wide">';
    echo '<a href="' . esc_url( $url ) . '" class="button" style="display: inline-flex; align-items: center; gap: 4px;"><span class="dashicons dashicons-saved"></span> Complete Order</a>';
    echo '</li>';
}